Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2008-11-26
2011-12-20
Hindi, Nabil Z (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
Reexamination Certificate
active
08081553
ABSTRACT:
An optical pickup apparatus comprising: a laser diode emitting laser light having a first wavelength; an objective lens focusing the laser light having the first wavelength emitted from the laser diode to each signal recording layer of a first optical disc for which the laser light having the first wavelength is specified as laser light for reproducing a signal and a second optical disc for which laser light having a second wavelength different from the first wavelength is specified as laser light for reproducing a signal; and a spherical aberration correction element disposed in an optical path between the laser diode and the objective lens, the spherical aberration correction element correcting each spherical aberration of the first optical disc and the second optical disc to reproduce a signal recorded in each signal recording layer of the first optical disc and the second optical disc.
REFERENCES:
patent: 6934226 (2005-08-01), Yasuda et al.
patent: 7012875 (2006-03-01), Shimano et al.
patent: 7245565 (2007-07-01), Yamasaki et al.
patent: 7369481 (2008-05-01), Kimura et al.
patent: 7453787 (2008-11-01), Ogasawara et al.
patent: 7564764 (2009-07-01), Kimura
patent: 7567495 (2009-07-01), Kamisada et al.
patent: 7680003 (2010-03-01), Watanabe et al.
patent: 7894320 (2011-02-01), Hayashi
patent: 7894322 (2011-02-01), Kawamura
patent: 7965612 (2011-06-01), Mori et al.
patent: 2003/0103437 (2003-06-01), Kimura
patent: 2000-081566 (2000-03-01), None
patent: 2004-295983 (2004-10-01), None
patent: 2006-172605 (2006-06-01), None
Hotta Tohru
Kawasaki Ryoichi
Fish & Richardson P.C.
Hindi Nabil Z
Sanyo Electric Co,. Ltd.
Sanyo Optec Design Co., Ltd.
LandOfFree
Optical pickup apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical pickup apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical pickup apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4311207